What is LVM's filter setting and how do I configure it easily in RHEL?

Issue

• I have many disks on my server, not all of which are assigned to LVM
• The default LVM filter of filter = [ "a/.*/" ] and global_filter = [ "a/.*/" ] causes extra unnecessary I/O testing for LVM devices at boot.
• LVM commands report I/O errors against passive paths of multipath devices.
• "LVM commands report "Found duplicate" UUID detection events"

• The pvs and pvscan commands show messages:

  WARNING: Not useing lvmetad because duplicate PVs were found.
  :
  WARNING: PV <uuid> on /dev/sdX was already found on /dev/mapper/mpatha.
  WARNING: PV <uuid> prefers device /dev/mapper/mpatha becasue device is used by LVM.